'''[[Depth of Field]]''' The distance in front of and behind the focus distance where the image blur is not recognizable.

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'''[[DPI]]''' Dots Per Inch - Pixel density when printing images.

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'''[[Dynamic range]]''' The ratio in brightness of the brightest highlight to the darkest shadow that are accurately captured in a scene.

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== E ==

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'''[[Entrance pupil]]''' The special point that you have to rotate your camera around, to avoid parallax errors. Commonly referred to as the [[Nodal Point]] or better [[no-parallax point]], which see for more information.

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'''[[Equirectangular Projection]]''' A projection capable of mapping the entire sphere to a rectangle with 2:1 aspect ratio.

Colour profile - Color profiles describe the color attributes of a particular device or viewing equipment by defining a mapping between the source or target color space to a common profile connection space.

Contrast - the difference in visual properties that makes an object distinguishable from other objects and the background

E

Enfuse - a command-line program used to merge different exposures of the same scene to produce an image that looks very much like a tonemapped image (without the halos) but requires no creation of an HDR image

Entrance pupil - The special point that you have to rotate your camera around, to avoid parallax errors. Commonly (and falsely) referred to as the Nodal Point.

I

Image Stacking - the process of merging two or more registered images together in order to enhance detail, suppress noise, remove motion artifacts, or otherwise leverage data contained across multiple exposures of the same scene